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.txt file in multi line textbox in ASP.NET 2.0

Posted by Purushottam Rathore Articles | ASP.NET Programming January 07, 2009
How will you display .txt file’s text in multi line textbox through ASP.NET 2.0?
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Steps to display .txt file in multi line textbox:

 

Step 1: Open new website in Microsoft Visual Studio 2005.

 

Step 2: Drop the textbox on the page from the toolbox or you can write the following code.

 

<asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine" style="overflow.hidden"></asp:TextBox>  

 

Step 3: Go to Solution Explorer and right click on your project. Click on Add Existing Item (See the following figure).

 

 tt1.jpg

 

Figure 1: Add Existing Item in Solution Explorer.

 

Step 4: Then add any .txt file.

 

t2.jpg 

 

Figure 2: Add .txt file in your project (here I am adding puru1.txt file).

 

Step 5: Add the System.IO namespace in default.aspx.cs file.

 

Step 6: Write the code on page load (see the given Example).

 

Step 7: Debug your code.

 

For Example:

 

Default.aspx:   

 

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head runat="server">

    <title>.txt file in multiline textbox</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    <asp:TextBox ID="TextBox1" runat="server" BorderWidth="2"  Height="50px" Width="200" TextMode="MultiLine" style="overflow.hidden" BackColor="#FFE0C0" ForeColor="Crimson">

    </asp:TextBox>

    </div>

    </form>

</body>

</html>

 

Default.aspx.cs:

 

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.IO;

 

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        StreamReader StreamReader1 = new StreamReader(Server.MapPath("puru1.txt"));

        TextBox1.Text = StreamReader1.ReadToEnd();

        StreamReader1.Close();

 

    }

}

 

Output:

 

t3.jpg 

 

Figure 3: .txt file in multi line textbox.

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